■SwiftUI+音声

import SwiftUI import AVFoundation struct ContentView: View { @State private var language = "ja" @State private var text: String = "" var body: some View { VStack { Picker(selection: $language, label: Text("フルーツを選択")) { Text("日本語").tag("ja") Text("英語").tag("en") } .frame(width: 200, height: 100) //Text("選択値：\(language)") TextEditor(text: $text) .frame(width: UIScreen.main.bounds.width * 0.9, height: 200) .overlay( RoundedRectangle(cornerRadius: 6) .stroke(Color.gray, lineWidth: 1) ) .padding() Button("読み上げる") { // 読み上げる内容 let utterance = AVSpeechUtterance(string: text) // 言語 if (language == "ja") { utterance.voice = AVSpeechSynthesisVoice(language: "ja-JP") } else { utterance.voice = AVSpeechSynthesisVoice(language: "en-US") } // 速度 utterance.rate = 0.5 //utterance.rate = 0.6 // 高さ utterance.pitchMultiplier = 1.0 //utterance.pitchMultiplier = 1.2 // 読み上げ実行 let synthesizer = AVSpeechSynthesizer() synthesizer.speak(utterance) } .padding() Spacer() } } } struct ContentView_Previews: PreviewProvider { static var previews: some View { ContentView() } }

<key>NSMicrophoneUsageDescription</key> <string>マイクを使用します。</string> <key>NSSpeechRecognitionUsageDescription</key> <string>音声認識を使用します。</string>

import SwiftUI import Speech struct ContentView: View { private let speechRecognizer = SFSpeechRecognizer(locale: Locale(identifier: "ja-JP"))! @State private var recognitionRequest: SFSpeechAudioBufferRecognitionRequest? @State private var recognitionTask: SFSpeechRecognitionTask? private let audioEngine = AVAudioEngine() @State private var text: String = "" var body: some View { VStack { TextEditor(text: $text) .frame(width: UIScreen.main.bounds.width * 0.9, height: 200) .overlay( RoundedRectangle(cornerRadius: 6) .stroke(Color.gray, lineWidth: 1) ) .padding() Button("音声認識開始") { try? start() } Button("音声認識終了") { stop() } } .onAppear() { SFSpeechRecognizer.requestAuthorization { (authStatus) in } } } private func start() throws { if let recognitionTask = recognitionTask { recognitionTask.cancel() self.recognitionTask = nil } let audioSession = AVAudioSession.sharedInstance() try audioSession.setCategory(.record, mode: .measurement, options: []) try audioSession.setActive(true, options: .notifyOthersOnDeactivation) let recognitionRequest = SFSpeechAudioBufferRecognitionRequest() self.recognitionRequest = recognitionRequest recognitionRequest.shouldReportPartialResults = true recognitionTask = speechRecognizer.recognitionTask(with: recognitionRequest, resultHandler: { (result, error) in //recognitionTask = speechRecognizer.recognitionTask(with: recognitionRequest) { [weak self] (result, error) in //guard let `self` = self else { return } var isFinal = false if let result = result { print(result.bestTranscription.formattedString) text = result.bestTranscription.formattedString isFinal = result.isFinal } if error != nil || isFinal { self.audioEngine.stop() self.audioEngine.inputNode.removeTap(onBus: 0) self.recognitionRequest = nil self.recognitionTask = nil } }) let recordingFormat = audioEngine.inputNode.outputFormat(forBus: 0) audioEngine.inputNode.installTap(onBus: 0, bufferSize: 1024, format: recordingFormat) { (buffer: AVAudioPCMBuffer, when: AVAudioTime) in self.recognitionRequest?.append(buffer) } audioEngine.prepare() try? audioEngine.start() } private func stop() { audioEngine.stop() recognitionRequest?.endAudio() } } struct ContentView_Previews: PreviewProvider { static var previews: some View { ContentView() } }